Onyx is a type is striped gem.
a person that studies gems is called a gemologist.
I'm not sure about expert (most likely just called a professor) but somebody who studies gems is a gemmologist. A mineralogist is linked
A common term used for these is gems.
its a gemstone
Yes, the art of cutting gems is known as Lapidary. In the trade Lapidarists are generally referred to as 'cutters'.
are gems used as rubies called lasers
a person that studies gems is called a gemologist.
These jewels are also called precious gems.
They are called gemstones.Rare, beautiful minerals are generally classified as "gems" or "gemstones".
When describing them, you could call them precious gems or gemstones.
agate
For Gems its Gemologist Not sure about Jewelry.
Because it has a stripe on its head that is darker than its body.
Most industrial diamonds and other gems are called synthetic
The codes I know of that haven't expired are explore2012(gets you 1000 gems), explorer,(100 gems) and gecko(a lime greeen and yellow striped gecko plushie) . Those are all the codes of June 23, 2012.
Sedimentary rocks.
u can get gems from a wilderness called never mine it is in chilly falls but its only for members...